E-L6920DTR

Overview

The E-L6920DTR is a synchronous step-up converter manufactured by STMicroelectronics, designed for high-efficiency voltage conversion from battery sources. It operates with an input voltage range of 600 mV to 5.5 V and supports fixed outputs of 3.3 V or 5 V, as well as adjustable outputs between 2 V and 5.2 V. The device features a 1 MHz switching frequency and low quiescent current of 11 uA. It is housed in an MSOP-8 package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Internal synchronous rectification implemented with a P-channel MOSFET to enhance efficiency
• Variable frequency control mechanism to optimize performance under varying load conditions
• Guaranteed startup at 1V input with operation down to 0.6V
• Reverse battery protection capability integrated into the design

Applications

• Battery-powered portable electronic devices requiring efficient step-up conversion
• Systems utilizing single-cell lithium-ion or alkaline batteries
• Low-voltage applications needing stable output from fluctuating input sources

Procurement Notes

Verify the specific suffix 'E' against official STMicroelectronics documentation to confirm if it denotes a specific engineering sample, tape-and-reel variant, or environmental compliance status distinct from the standard L6920DTR. Confirm package type accuracy, as datasheets may list MSOP-8 while distributor listings sometimes reference TSSOP-8 for similar series parts. Ensure moisture sensitivity handling protocols are followed upon receipt.

Selection Notes

Select this component when designing circuits that require high efficiency from low input voltages. The synchronous rectifier architecture makes it suitable for applications where power conservation is critical. Compare output current capabilities against load requirements, noting variations between different suffixes in the L6920 family. Ensure the operating temperature range aligns with the intended environment.

Part Context

The L6920 series represents STMicroelectronics' solution for high-efficiency DC-DC conversion in compact form factors. This part belongs to the PMIC category, specifically focusing on step-up topologies. The series is characterized by minimal external component count, typically requiring only three components for basic operation, facilitating space-constrained PCB designs.

Replacement Considerations

Publicly confirmed substitute part numbers for the exact E-L6920DTR variant are not available in the provided source material. Engineers should consult the official STMicroelectronics replacement guide or contact manufacturer support directly for validated cross-reference data.